RC6432F4221CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F4221CS is a 4.22 kOhms ±1% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status and features moisture-resistant construction suitable for general industrial applications. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and package compatibility align with the main part's functional requirements. Alternative sources provide design flexibility, supply chain redundancy, and application-specific certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC6432F4221CS

Samsung Electro-MechanicsIn Stock: 1288RC6432F4221CS Datasheet

Current PartRFQ

CRCW25124K22FKEG

Vishay DaleIn Stock: 1096CRCW25124K22FKEG Datasheet

SimilarRFQ

ERJ-1TNF4221U

Panasonic Electronic ComponentsIn Stock: 1544ERJ-1TNF4221U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F4221CS is determined by strict alignment of the following parameters:

Primary Substitution Criteria:

• Resistance value: 4.22 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

All identified substitute parts meet these core electrical and mechanical specifications. Dimensional variations within supplier device package tolerances are acceptable. Secondary features such as automotive AEC-Q200 certification represent application-specific enhancements that do not preclude substitution in non-automotive contexts.

Parameter Comparison

Engineering Selection Recommendations

RC6432F4221CS (Samsung Electro-Mechanics) — Primary Selection

Active product status with unlimited availability. Suitable for general industrial applications requiring moisture-resistant thick film construction. No automotive certification; appropriate for consumer and industrial electronics.

CRCW25124K22FKEG (Vishay Dale) — Preferred Substitute

Active product status with AEC-Q200 automotive qualification. Functionally equivalent with enhanced reliability certification. Recommended for applications requiring automotive-grade components or where supply continuity from multiple sources is required. Tape & Reel packaging supports high-volume production workflows.

ERJ-1TNF4221U (Panasonic Electronic Components) — Legacy Substitute

Classified as "Not For New Designs." Functionally equivalent with AEC-Q200 automotive qualification. Suitable only for replacement, repair, or continuation of existing designs. Not recommended for new product development. Tape & Reel packaging available.

Frequently Asked Questions (FAQ)

Q: Can CRCW25124K22FKEG replace RC6432F4221CS in existing designs?

A: Yes. Both parts share identical electrical specifications (4.22 kOhms ±1%, 1W), composition (thick film), temperature characteristics (±100ppm/°C, -55°C to 155°C), and package format (2512/6432 Metric). Dimensional tolerances are within acceptable supplier device package ranges. The Vishay part includes AEC-Q200 certification, which does not restrict use in non-automotive applications.

Q: What is the difference between the Samsung and Panasonic parts?

A: RC6432F4221CS and ERJ-1TNF4221U are electrically and mechanically equivalent. The primary difference is product status: Samsung is Active; Panasonic is Not For New Designs. Both feature identical resistance, tolerance, power rating, temperature range, and RoHS compliance. Panasonic includes AEC-Q200 automotive certification. For new designs, Samsung or Vishay parts are preferred.

Q: Are dimensional differences between these parts significant?

A: Dimensional variations are minor and within standard supplier tolerances. RC6432F4221CS measures 0.248" L × 0.126" W (6.30mm × 3.20mm); CRCW25124K22FKEG measures 0.248" L × 0.124" W (6.30mm × 3.15mm); ERJ-1TNF4221U measures 0.252" L × 0.126" W (6.40mm × 3.20mm). Height differences (0.66mm to 0.70mm) are negligible for PCB layout. All parts fit standard 2512 package footprints.

Q: Does AEC-Q200 certification affect substitution in non-automotive applications?

A: No. AEC-Q200 is an additional qualification that enhances reliability for automotive use. Parts with AEC-Q200 certification (CRCW25124K22FKEG, ERJ-1TNF4221U) are fully compatible with non-automotive applications and do not impose restrictions on use.

Q: What packaging formats are available?

A: RC6432F4221CS is supplied in standard packaging (format not specified in data). CRCW25124K22FKEG and ERJ-1TNF4221U are supplied in Tape & Reel (TR) format, suitable for automated assembly and high-volume production.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC6432F4221CS, CRCW25124K22FKEG, and ERJ-1TNF4221U are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting environmental and regulatory requirements for industrial and consumer electronics.